US11391757B2 - Test device - Google Patents
Test device Download PDFInfo
- Publication number
- US11391757B2 US11391757B2 US16/850,116 US202016850116A US11391757B2 US 11391757 B2 US11391757 B2 US 11391757B2 US 202016850116 A US202016850116 A US 202016850116A US 11391757 B2 US11391757 B2 US 11391757B2
- Authority
- US
- United States
- Prior art keywords
- cable
- probe
- signal
- test device
- test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active, expires
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/06772—High frequency probes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0433—Sockets for IC's or transistors
- G01R1/0441—Details
- G01R1/045—Sockets or component fixtures for RF or HF testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/06711—Probe needles; Cantilever beams; "Bump" contacts; Replaceable probe pins
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/18—Screening arrangements against electric or magnetic fields, e.g. against earth's field
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/26—Testing of individual semiconductor devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2851—Testing of integrated circuits [IC]
- G01R31/2886—Features relating to contacting the IC under test, e.g. probe heads; chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/70—Testing of connections between components and printed circuit boards
Definitions
- the present disclosure relates to a test device, and more particularly to a test device for a high-speed and high-frequency test, which effectively blocks out noise from an adjacent signal line and is excellent in signal transmission characteristics.
- a test device To test electric characteristics of an object to be tested such as a semiconductor, a test device has employed a probe socket for supporting a test probe, and a test circuit board for contacting the test probe and applying a test signal.
- a noise shield between signal probes of the probe socket has become very important. That is, the mechanical length, impedance matching, etc. of the test circuit board have become important as test speed and frequency get higher.
- a conventional test device includes a probe socket for supporting a signal probe, and a test circuit board placed under the probe socket and providing a test signal.
- the probe socket performs a test as the signal probe is inserted in a conductive brass block without contact.
- the test circuit board includes a signal pad and a conductive column formed on an insulating dielectric substrate and transmitting the test signal.
- a conductive ground body has been used to shield adjacent signal probes of the probe socket from each other.
- the test circuit board includes a wiring line having a predetermined length, and thus a signal loss is caused corresponding to the length of the wiring line, thereby deteriorating signal transmission characteristics.
- An aspect of the present disclosure is conceived to solve the conventional problems, and provides a test device which effectively blocks out noise between adjacent signal lines and tests a high-frequency and high-speed semiconductor excellent in transmission characteristics of a test signal.
- a test device in accordance with an embodiment of the present disclosure, there is provided a test device.
- the test device includes: a conductive block which includes a probe hole; at least one signal probe which is supported in an inner wall of the probe hole without contact, includes a first end to be in contact with a testing contact point of the object to be tested, and is retractable in a lengthwise direction; and a coaxial cable which includes a core wire to be in electric contact with a second end of the signal probe.
- the test device certainly blocks out noise between the signal probes on a cable supporting substrate and enhances the transmission characteristics of the test signal.
- the test device may further include a cable accommodating hole in which the coaxial cable is accommodated, and a cable supporter which includes a cable supporting block coupled to the conductive block so that the probe hole corresponds to the cable accommodating hole, thereby firmly supporting the coaxial cable.
- the cable supporting block may include a cable supporting recess for supporting the coaxial cable, thereby preventing the coaxial cable from moving.
- the cable supporter may include an extended plate portion integrally extended from the cable supporting block, thereby preventing interference between the coaxial cables.
- the cable supporter may include a cable supporting substrate having a through hole through which the cable supporting block passes, thereby stably fastening the cable supporting block to the conductive block.
- the coaxial cable is in direct contact with the signal probe, thereby fully blocking out noise in a test circuit board.
- FIG. 1 is an exploded cross-sectional view of a test socket in a test device according to a first embodiment of the present disclosure
- FIG. 2 is a plane view of the test device according to the first embodiment of the present disclosure
- FIG. 3 is a bottom perspective view of the test device according to the first embodiment of the present disclosure.
- FIG. 4 is an exploded perspective view of the test device according to the first embodiment of the present disclosure.
- FIG. 5 is a cross-sectional view of the test device according to the first embodiment of the present disclosure.
- FIG. 6 is a partial enlarged cross-sectional view illustrating a detailed coupling state between a signal probe and a coaxial cable according to the first embodiment of the present disclosure.
- FIG. 7 is a cross-sectional view of a test device according to a second embodiment of the present disclosure.
- test device 1 according to a first embodiment of the present disclosure will be described in detail with reference to the accompanying drawings.
- FIG. 1 is an exploded cross-sectional view of a test socket in the test device 1 according to a first embodiment of the present disclosure
- FIGS. 2 to 6 are respectively a plane view, a bottom perspective view, an exploded perspective view, a cross-sectional view and a partial enlarged cross-sectional view of the test device 1 according to the first embodiment of the present disclosure.
- the test device 1 includes a test socket 100 , a coaxial cable 200 , and a cable supporter 300 .
- the test socket 100 includes a conductive block 110 having at least one signal probe hole 112 and at least one ground probe hole 114 ; a signal probe 120 contactless-accommodated in the signal probe hole 112 ; a ground probe 130 contact-accommodated in the ground probe hole 114 ; an upper supporting member 140 for supporting an upper end of the signal probe 120 , and a lower supporting member 150 for supporting a lower end of the signal probe 120 .
- the conductive block 110 includes an upper supporting member accommodating groove 116 on an upper side to accommodate the upper supporting member 140 .
- the upper supporting member accommodating groove 116 includes a shield island 117 protruding at the center.
- the shield island 117 blocks out noise made in the signal probes 120 supported on the non-conductive upper supporting member 140 .
- the signal probe 120 in the middle passes through the signal probe hole 112 without contact, and is then supported on the upper supporting member 140 .
- the signal probe 120 has an upper end to be in contact with a testing contact point (not shown) of an object to be tested, and a lower end to be in contact with a core wire 210 of the coaxial cable 200 .
- the signal probe 120 applies a test signal through the core wire 210 of the coaxial cable 200 .
- the signal probe 120 may be materialized by a retractable Pogo pin.
- the signal probe 120 includes a barrel (not shown), upper and lower plungers (not shown) partially inserted in the opposite ends of the barrel, and a spring (not shown) arranged between the upper and lower plungers within the barrel. At least one of the upper and lower plungers is inserted in the barrel and slide to compress the spring within the barrel.
- the ground probe 130 having an upper end to be in contact with a ground terminal of an object to be tested (not shown), and a lower end to be in contact with the cable supporter 300 .
- the ground probe 130 receives a ground signal from the object to be tested.
- the ground probe 130 may be may be materialized by a retractable Pogo pin.
- the ground probe 130 includes a barrel (not shown), upper and lower plungers (not shown) partially inserted in the opposite ends of the barrel, and a spring (not shown) arranged between the upper and lower plungers within the barrel. At least one of the upper and lower plungers is inserted in the barrel and slide to compress the spring within the barrel.
- the ground probe 130 is supported being in contact with the conductive block 110 .
- the shield island 117 is interposed among three signal probe 120 , and five ground probe 130 are supported being in contact with the shield island 117 .
- the grounded shield island 117 shields the signal probes 120 from noise.
- the upper supporting member 140 is fastened to the conductive block 110 by a first screw 142 as accommodated in the upper supporting member accommodating groove 116 , thereby supporting the signal probe 120 .
- the signal probe 120 is inserted in the signal probe hole 112 of the conductive block 110 without contact as floating to prevent a short-circuit.
- the insulating upper supporting member 140 supports the upper end of the signal probe 120 .
- the lower supporting member 150 is made of a conductive material and is accommodated in a lower supporting member accommodating groove 118 to support the lower end of the signal probe 120 .
- the signal probe 120 is inserted in the signal probe hole 112 of the conductive block 110 without contact as floating to prevent a short-circuit.
- the lower supporting member 150 includes an insulating signal probe supporting member 152 to support the lower end of the signal probe 120 . In result, the signal probe 120 passes through the conductive block 110 and the lower supporting member 150 without contact, and the opposite ends of the signal probe 120 are supported by the upper supporting member 140 and the signal probe supporting member 152 .
- the signal probe hole 112 and the ground probe hole 114 are formed penetrating the upper supporting member 140 , the conductive block 110 and the lower supporting member 150 .
- the signal probe 120 is inserted in the signal probe hole 112 without contact, and the ground probe 130 is inserted in and contacts the ground probe hole 114 . In this case, both ends of each of the signal probe 120 and the ground probe 130 partially protrude from the top and bottom surfaces of the upper supporting member 140 and the conductive block 110 .
- the coaxial cable 200 includes a core wire 210 placed at the core and transmitting a signal, an external conductor 220 surrounding the outer portion of the core wire 210 as separated from the core wire 210 to block out the noise, and an insulator 230 filled in between the core wire 210 and the external conductor 220 .
- the core wire 210 of the coaxial cable 200 is grinded for contact with the signal probe 120 .
- the coaxial cable 200 has a first end contacting the signal probe 120 and supported on a cable supporting block 310 (to be described later), and a second end supported on a cable supporting substrate 320 positioned as separated from the first end.
- the coaxial cable 200 includes a signal connector 240 to receive a test signal from the outside.
- the signal connector 240 is mounted to the cable supporting substrate 320 .
- the cable supporter 300 includes the cable supporting block 310 having a cable accommodating hole 312 for accommodating the coaxial cable 200 , and the cable supporting substrate 320 mounted with the test socket 100 .
- the cable supporting block 310 includes a plurality of cable accommodating holes 312 at positions corresponding to the signal probe holes 112 of the lower supporting member 150 .
- the cable supporting block 310 may be made of conductive metal.
- the cable supporting block 310 is coupled to the conductive block 110 by a second screw 144 as inserted in a through hole 322 of the cable supporting substrate 320 .
- the cable supporting block 310 includes a cable supporting recess 314 recessed at an opposite side to a portion for contact with the conductive block 110 , and an extended plate portion 316 extended transversely.
- the coaxial cable 200 is inserted in the cable accommodating hole 312 of the cable supporting recess 314 and locked with adhesive (or glue) 315 filled in the cable supporting recess 314 .
- the extended plate portion 316 is in contact with a rear side of the cable supporting substrate 320 and supports the cable supporting substrate 320 along with the test socket 100 .
- the cable supporting substrate 320 includes one side onto which the test socket 100 is mounted, and the rear side to which the second ends of the coaxial cables 200 are separately attached for blocking out the noise.
- the cable supporting substrate 300 includes the through hole 322 in which the cable supporting block 310 is accommodated while penetrating the cable supporting substrate 300 .
- FIG. 7 is a cross-sectional view of a test device 2 according to a second embodiment of the present disclosure.
- like numerals refer to like elements, and only different parts will be described.
- the test device 2 includes the test socket 100 , the coaxial cable 200 , and the cable supporter 300 .
- the cable supporter 300 does not include the cable supporting substrate 320 unlike that of the first embodiment, and the signal connector 240 is fastened to the extended plate portion 316 instead of the cable supporting substrate 320 .
- the signal probe supported in the conductive block is in direct contact with the core wire of the coaxial cable, thereby certainly blocking out the noise between the signal lines at a side of an test circuit board and improving the transmission characteristics of the test signal.
- the test device according to the present disclosure enhances the test reliability at a high-speed/high-frequency test.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Leads Or Probes (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/705,639 US11726111B2 (en) | 2017-11-30 | 2022-03-28 | Test device |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020170162775A KR102015788B1 (ko) | 2017-11-30 | 2017-11-30 | 검사장치 |
KR10-2017-0162775 | 2017-11-30 | ||
PCT/KR2018/014396 WO2019107830A1 (fr) | 2017-11-30 | 2018-11-22 | Dispositif de test |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2018/014396 Continuation WO2019107830A1 (fr) | 2017-11-30 | 2018-11-22 | Dispositif de test |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/705,639 Division US11726111B2 (en) | 2017-11-30 | 2022-03-28 | Test device |
Publications (2)
Publication Number | Publication Date |
---|---|
US20200241044A1 US20200241044A1 (en) | 2020-07-30 |
US11391757B2 true US11391757B2 (en) | 2022-07-19 |
Family
ID=66664546
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/850,116 Active 2038-11-27 US11391757B2 (en) | 2017-11-30 | 2020-04-16 | Test device |
US17/705,639 Active US11726111B2 (en) | 2017-11-30 | 2022-03-28 | Test device |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/705,639 Active US11726111B2 (en) | 2017-11-30 | 2022-03-28 | Test device |
Country Status (8)
Country | Link |
---|---|
US (2) | US11391757B2 (fr) |
EP (1) | EP3669196A4 (fr) |
JP (1) | JP7097452B2 (fr) |
KR (1) | KR102015788B1 (fr) |
CN (1) | CN111279203B (fr) |
SG (1) | SG11202002291TA (fr) |
TW (1) | TWI700500B (fr) |
WO (1) | WO2019107830A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112098749A (zh) * | 2019-09-05 | 2020-12-18 | 日置电机株式会社 | 测量装置 |
CN112824912A (zh) * | 2019-11-20 | 2021-05-21 | 嘉联益电子(昆山)有限公司 | 传输线测试模块与传输线测试方法 |
TWI800098B (zh) * | 2021-11-15 | 2023-04-21 | 貿聯國際股份有限公司 | 測試板 |
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JPS6471141A (en) | 1987-09-11 | 1989-03-16 | Hitachi Ltd | Inspection device for semiconductor element |
JPH0652748B2 (ja) | 1987-05-12 | 1994-07-06 | 東京エレクトロン株式会社 | プロ−ブカ−ド |
JPH06317624A (ja) | 1993-05-10 | 1994-11-15 | Hitachi Ltd | 電極の接続装置 |
JPH07167906A (ja) | 1993-07-30 | 1995-07-04 | Genrad Inc | 開回路の容量式検査のためのプローブ |
US5659255A (en) | 1995-04-14 | 1997-08-19 | Cascade Microtech, Inc. | Method of evaluating signal conditions in a probe measurement network having a plurality of separate measurement channels |
JP2001099889A (ja) | 1999-09-29 | 2001-04-13 | Yokowo Co Ltd | 高周波回路の検査装置 |
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WO2009098770A1 (fr) | 2008-02-07 | 2009-08-13 | Advantest Corporation | Unité d'échange de variété, et procédé de fabrication |
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2017
- 2017-11-30 KR KR1020170162775A patent/KR102015788B1/ko active IP Right Grant
-
2018
- 2018-11-22 EP EP18883317.2A patent/EP3669196A4/fr active Pending
- 2018-11-22 CN CN201880069228.2A patent/CN111279203B/zh active Active
- 2018-11-22 JP JP2020541331A patent/JP7097452B2/ja active Active
- 2018-11-22 SG SG11202002291TA patent/SG11202002291TA/en unknown
- 2018-11-22 TW TW107141560A patent/TWI700500B/zh active
- 2018-11-22 WO PCT/KR2018/014396 patent/WO2019107830A1/fr unknown
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2020
- 2020-04-16 US US16/850,116 patent/US11391757B2/en active Active
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2022
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Also Published As
Publication number | Publication date |
---|---|
EP3669196A4 (fr) | 2020-08-26 |
TW201925805A (zh) | 2019-07-01 |
EP3669196A1 (fr) | 2020-06-24 |
KR102015788B1 (ko) | 2019-08-29 |
KR20190063759A (ko) | 2019-06-10 |
TWI700500B (zh) | 2020-08-01 |
US11726111B2 (en) | 2023-08-15 |
JP7097452B2 (ja) | 2022-07-07 |
US20220214377A1 (en) | 2022-07-07 |
CN111279203B (zh) | 2023-07-11 |
WO2019107830A1 (fr) | 2019-06-06 |
SG11202002291TA (en) | 2020-04-29 |
US20200241044A1 (en) | 2020-07-30 |
JP2020537161A (ja) | 2020-12-17 |
CN111279203A (zh) | 2020-06-12 |
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